kde-playground/kdepimlibs/akonadi/dbusconnectionpool.cpp
2015-04-14 21:49:29 +00:00

65 lines
2.2 KiB
C++

/*
* Copyright (C) 2010 Sebastian Trueg <trueg@kde.org>
* Copyright (C) 2010 David Faure <faure@kde.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "dbusconnectionpool.h"
#include <QCoreApplication>
#include <QThread>
#include <QThreadStorage>
namespace {
QAtomicInt s_connectionCounter;
class DBusConnectionPoolPrivate
{
public:
DBusConnectionPoolPrivate()
: m_connection(QDBusConnection::connectToBus(
QDBusConnection::SessionBus,
QString::fromLatin1("AkonadiKde%1").arg(newNumber())))
{
}
~DBusConnectionPoolPrivate() {
QDBusConnection::disconnectFromBus(m_connection.name());
}
QDBusConnection connection() const {
return m_connection;
}
private:
static int newNumber() {
return s_connectionCounter.fetchAndAddAcquire(1);
}
QDBusConnection m_connection;
};
}
QThreadStorage<DBusConnectionPoolPrivate *> s_perThreadConnection;
QDBusConnection Akonadi::DBusConnectionPool::threadConnection()
{
if (!QCoreApplication::instance() || QCoreApplication::instance()->thread() == QThread::currentThread()) {
return QDBusConnection::sessionBus(); // main thread, use the default session bus, breaks unported resources otherwise
}
if (!s_perThreadConnection.hasLocalData()) {
s_perThreadConnection.setLocalData(new DBusConnectionPoolPrivate);
}
return s_perThreadConnection.localData()->connection();
}